#11885: call function in sage.libs.mpmath.utils doesn't handle
parent=parent(float)
------------------------------+---------------------------------------------
Reporter: benjaminfjones | Owner: burcin
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.7.2
Component: symbolics | Keywords: mpmath call parent precision
Work_issues: | Upstream: N/A
Reviewer: Burcin Erocal | Author: Benjamin Jones
Merged: | Dependencies:
------------------------------+---------------------------------------------
Comment(by leif):
Replying to [comment:3 benjaminfjones]:
> Good point! I made the change and added a doctest to `call()` to
illustrate that the bug is fixed.
>
> The change does give a speedup. The best case I found was running
{{{
sage: timeit('mputils.call(a.ei, 1.0r, parent=float)')
}}}
>
> Before the old patch, I was getting about 87 micro seconds. With the new
patch, the best time I got was about 60 micro seconds.
I'm not sure whether that's a deterministic result.
But Burcin is right, using `try: ...` is (at least) faster ''in case
`parent` '''does''' have a `prec()` method''.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11885#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
